BeiJer GN-9289 - Troubleshooting; LED Diagnosis Guide

GN-9289 User Manual
Page 66 of (70)
G-series GN-9289 Modbus TCP_UDP Rev. 1.01.docx
10. Trouble Shooting
10.1. How to diagnose by LED indicator
LED Status
Cause
Action
All LED turns off
- No power
- Check main power Cable
MOD LED Green/Red
Toggle
- MODBUS error such as watchdog
error, etc.
- Check Modbus watchdog time
vlaue(see index 0x1020
MOD LED is red
- Occurrence critical error in
firmware
- Contact Sales team and send
module for repair.
LINK LED turns off
- Device may not be powered
- Check main power Cable
ACTIVE LED turns off
- Device is idle or may not be
powered.
- Check main power Cable
IOS LED turns off
- Device may not be powered.
- Check main power Cable
IOS LED flashes red - Adapter has no expansion module
- Add one or more expansion
modules.
IOS LED is red
One or more expansion module
occurred in fault state.
- Detected invalid expansion module
ID.
- Overflowed Input/Output Size
- Too many expansion module
- Initialization failure
- Communication failure.
- Changed expansion module
configuration.
- Mismatch vendor code between
adapter and expansion module.
- Use expansion slot up to 63.
- Compose that IO total size is not
excess.
- Check status of expansion IO
connection.
- Check the vendor code of
module.
Field Power LED turns off - Field power is not supplied.
- Check main power Cable
- Contact Sales team and send
module for repair.
System Power LED turns
off
- System power is not supplied.
- Check main power Cable
- Contact Sales team and send
module for repair.